Using the shift command

Usually only nine command line arguments can be accessed
using positional parameters. The shift command gives
access to command line arguments greater than nine by
shifting each of the arguments.

The second argument ($2) becomes the first ($1), the
third ($3) becomes the second ($2) and so on. This gives
you access to the tenth command line argument by making
it the ninth. The first argument is no longer available.

Successive shift commands make additional arguments
available. Note that there is no "unshift" command to
bring back arguments that are no longer available!